Why the update component method?

[Zireael07]

Since components are just structs, you should be able to just edit them in-place, without a remove-and-add dance that invites GC in the middle...

[jcerise]

I think when I first wrote that a while back, I had a use case for the removal and replace...but I can't recall what it would have been. Sort of a forest for the trees sort of thing. This is a great suggestion, and not only does it get rid of excess objects and limit GC as you pointed out, it'll drastically simplify the ECS update flow.